Screenshots are in German, but whatever localization you use, the dialog will look correct in any language.

For both you can check if sending is possible, show the panel with your message to send. You can define subject, body text and add several attachments. For emails we can use HTML text of course.
The user can change text and add more attachments of course.

Will be soon available in next plugin version. Or email if you like to try today.
10 06 17 - 22:23